Lumen Lighting and Level Details in Unreal Engine 5

In episode 7 of the UE5 game development series, we'll take a look at how Lumen is interacting with the game level as new details are added. We'll go over the different light types, adding lights from our C++ actor, adding details to the room meshes in Blender, and then creating materials to give the game some color. We'll then take a closer look at Lumen lighting and reflections.
Previous Videos - • Unreal Engine 5 Game D...
Github Project - github.com/Liv...
Twitter - / livelygeek
Lumen - docs.unrealeng...
Hard surface modeling in Blender with Josh Gambrell - / joshgambrell

[@nicolasrodriguez5054]

Awesome, cristal clear as always.
This have a bright future!
Puns intended

[@LivelyGeekGames]

Haha, thanks!

[@memerjigamer8476]

🔥🔥

[@Beno951]

I like the footage at the end where you are pushing everything to git :D

[@LivelyGeekGames]

Just a reminder to always make backups. :)

[@JPower123]

this is actually really cool

[@LivelyGeekGames]

Thanks!

[@outtoplay]

Excellent work! Your knowledge and sharing of how to fix issues and make scenes more pleasing is really appreciated.

[@LivelyGeekGames]

Thanks! Glad you found it useful.

[@unvergebeneid]

Nvidia: Real-time ray tracing means everything has to be done in 16 ms!
Lumen: But... does it though?

[@amgloriouschubbunny3261]

Hello! I come from unity, but damn, I REALLY wish I just started with unreal XD

[@hyeve5319]

as far as I'm aware, Lumen doesn't use raytracing, rather ray *marching* , which is a similar but far faster technique. The reflection issues are probably due to lumen using a reduced-quality distance field version of the scene (the exact technical details are complicated, and I don't know enough about lumen to say for sure) and the inherent inaccuracies caused by raymarching.

[@LivelyGeekGames]

Ahh, thanks for the clarification. I've seen more accurate reflections in some other demos, so perhaps they were using hardware raytracing on an RTX card along with Lumen.

[@LIMBICNATIONARTIST]

Your are very talented!

[@ZeroKingHD]

noice ;D

[@mb.3d671]

Reflections in ue5 are a big issue because they don’t want to use actual ray tracing. Hardware ray tracing doesn’t improve much and there is no real support to fix it. They hope to advance it without ray tracing but it does use a form of raytracing. There are some setting you can change but it’s really not worth it.

[@DimitryArsenev]

I dunno how make better lighting for dynamic scene, my game have world editor, users make worlds and set lightings objects. I cant bake light in UE, all lighinghs objects created on level load.

[@PhillipAmthor]

Its so funny that they replaced artifical lightmaps with real light now

[@hatty101]

Can i have the meshes please? thanks!

[@LivelyGeekGames]

All the meshes can be found in the Blender file on GitHub: github.com/LivelyGeek/Flybot

[@geodav2497]

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